# # Data product developed by Dr. E. Thiemann from the # Laboratory for Atmospheric and Space Physics, Boulder, Colorado # in the frame of the PROBA2 guest investigator program. # # Please address your questions to E. Thiemann (thiemann@lasp.colorado.edu) and # to the LYRA Principal Investigator M. Dominique (marie.dominique@oma.be) # # PROBA2 data products are open to all. # Users should however refer to the following paper: http://arxiv.org/abs/1708.08833 # and acknowledge the instrument according to the rules described # at http://proba2.oma.be/data/termsOfUse in their papers and presentations # # Website reference http://proba2.oma.be/lyra/data/EarthAtmosphere/ # # Description: # Summed neutral N2 and O number density profiles, spanning altitudes between 150 and 400 km # retrieved from LYRA data acquired during occultations by the unit 3 (backup unit) zirconium # channel (bandpass: 1-2 nm + 6-20 nm). # # Radial distance is the distance from the center of Earth expressed in km to which the density corresponds. # Density O-N2 provides the summed number density of neutral O and N2 in units of radial distance and cm^-3. # The systematic error is a signed value (asymmetric) in fractional units and is primarily from the error made by # assuming that the absorption cross-sections of O and N2 are equal; a secondary source of systematic error is # from using a single-scale height atmosphere in the reference atmosphere used by the retrieval algorithm. # The random error is an unsigned value (to be applied symmetrically to the measurement) in fractional # units and gathers the uncertainties from solar spectra, solar variability and measurement noise. # Both uncertainties are described in http://arxiv.org/abs/1708.08833. # The Longitude and Latitude (in degrees) columns refer to the tangential point along the # line-of-sight, where most of the absorption occurs. # # Scale height = 43.372865 km # Date (UTC) = 2015-12-11T08:12:31.351 # Date (julian) = 2457367.84202952 # # Radial distance Density O-N2 Systematic error Random error Longitude Latitude 6503.8400 6.1240038e+10 0.061092432 0.033441139 -1.9535821 52.399255 6505.6383 4.9994681e+10 0.067645913 0.033983436 -2.0476835 52.327111 6507.4367 4.4178989e+10 0.075246150 0.034525734 -2.1393830 52.252581 6509.2351 4.7072237e+10 0.086002079 0.035068032 -2.2303358 52.177309 6511.0335 4.3633392e+10 0.094919616 0.035610329 -2.3212886 52.102037 6512.8319 4.3367355e+10 0.10510371 0.036152627 -2.4122414 52.028567 6514.6303 3.6460041e+10 0.11302824 0.036694925 -2.5031943 51.956432 6516.4286 2.9718651e+10 0.12018126 0.037237223 -2.5941472 51.884297 6518.2270 2.8342951e+10 0.13011105 0.037779520 -2.6850999 51.810952 6520.0254 2.7342879e+10 0.14057391 0.038321818 -2.7760525 51.735680 6521.8238 2.9875155e+10 0.15316823 0.038864116 -2.8670050 51.660409 6523.6222 3.1080831e+10 0.16031280 0.039333317 -2.9595060 51.583976 6525.4206 2.7061223e+10 0.16495089 0.039734217 -3.0583013 51.502823 6527.2189 2.2004866e+10 0.16835686 0.040875424 -3.1570965 51.421670 6529.0173 1.8535539e+10 0.17026119 0.042263381 -3.2519074 51.342650 6530.8157 1.8168380e+10 0.17391801 0.044970673 -3.3397353 51.267370 6532.6141 1.9115665e+10 0.17811574 0.047197200 -3.4275633 51.192089 6534.4125 1.8674282e+10 0.17918931 0.048059942 -3.5153892 51.116810 6536.2109 1.7206898e+10 0.17829685 0.047979161 -3.6032054 51.041539 6538.0092 1.5860131e+10 0.17880274 0.049161181 -3.6910217 50.966267 6539.8076 1.5313194e+10 0.17821727 0.050621236 -3.7788329 50.891000 6541.6060 1.4642167e+10 0.17588182 0.051130006 -3.8635597 50.818819 6543.4044 1.3660942e+10 0.17401804 0.051488028 -3.9482400 50.746684 6545.2028 1.2845267e+10 0.17265266 0.052457384 -4.0329203 50.674549 6547.0012 1.2182394e+10 0.17097092 0.053287805 -4.1176003 50.599910 6548.7995 1.1598517e+10 0.16875783 0.053906416 -4.2022803 50.524639 6550.5979 1.1013679e+10 0.16744904 0.055135075 -4.2869603 50.449367 6552.3963 1.0683511e+10 0.16599928 0.055487016 -4.3716472 50.374090 6554.1947 9.6457253e+09 0.16402406 0.054836466 -4.4563387 50.298809 6555.9931 8.7743920e+09 0.16213645 0.054018945 -4.5410302 50.223529 6557.7915 8.0551478e+09 0.16085237 0.053370020 -4.6243939 50.149575 6559.5898 7.5025407e+09 0.15863679 0.052320605 -4.7059375 50.077440 6561.3882 7.4392303e+09 0.15555804 0.051181373 -4.7874811 50.005306 6563.1866 7.0586513e+09 0.15315159 0.049712506 -4.8690248 49.932439 6564.9850 6.6356699e+09 0.15105035 0.048325200 -4.9505688 49.857167 6566.7834 6.2363329e+09 0.14868906 0.046739732 -5.0321128 49.781896 6568.5818 5.8687905e+09 0.14654780 0.045236889 -5.1136567 49.706624 6570.3801 5.5049938e+09 0.14489871 0.044760042 -5.1952003 49.631353 6572.1785 5.2174952e+09 0.14275464 0.044127920 -5.2767439 49.556083 6573.9769 4.9326849e+09 0.13980389 0.042873537 -5.3582875 49.480813 6575.7753 4.6757217e+09 0.13730714 0.041596848 -5.4371545 49.405532 6577.5737 4.4388795e+09 0.13485316 0.039319271 -5.5155725 49.330251 6579.3721 4.2074164e+09 0.13222799 0.036865962 -5.5939905 49.254969 6581.1704 3.9820299e+09 0.13019985 0.035544998 -5.6724015 49.179694 6582.9688 3.7655983e+09 0.12884661 0.035030151 -5.7508088 49.104424 6584.7672 3.5727745e+09 0.12717654 0.034097585 -5.8292162 49.029154 6586.5656 3.3954226e+09 0.12539233 0.033163985 -5.9076237 48.953883 6588.3640 3.2383582e+09 0.12395569 0.033258381 -5.9860313 48.878611 6590.1624 3.0918690e+09 0.12211677 0.030760060 -6.0644389 48.803339 6591.9607 2.9529532e+09 0.11989706 0.028117828 -6.1419326 48.728067 6593.7591 2.8311188e+09 0.11774501 0.026396467 -6.2172038 48.652796 6595.5575 2.7066342e+09 0.11538084 0.025681386 -6.2924749 48.577524 6597.3559 2.5938269e+09 0.11328417 0.025610422 -6.3677471 48.502574 6599.1543 2.4787861e+09 0.11154674 0.024939009 -6.4430284 48.430430 6600.9527 2.3667367e+09 0.11129677 0.026948359 -6.5183096 48.358285 6602.7510 2.2576124e+09 0.11023079 0.026875727 -6.5935909 48.286141 6604.5494 2.1442476e+09 0.10900847 0.026397505 -6.6688629 48.211136 6606.3478 2.0402203e+09 0.10810514 0.026878967 -6.7441341 48.135866 6608.1462 1.9505088e+09 0.10570035 0.023728506 -6.8194052 48.060596 6609.9446 1.8646084e+09 0.10285423 0.023986514 -6.8923983 47.985324 6611.7430 1.7868876e+09 0.10023306 0.024484670 -6.9645333 47.910052 6613.5413 1.7107786e+09 0.098976954 0.023772209 -7.0366683 47.834781 6615.3397 1.6216421e+09 0.097494845 0.023261984 -7.1155522 47.754448 6617.1381 1.5379319e+09 0.096234456 0.023485038 -7.2002335 47.669767 6618.9365 1.4510777e+09 0.095607463 0.024477956 -7.2849148 47.585086 6620.7349 1.3705204e+09 0.095188626 0.025004009 -7.3607732 47.507020 6622.5333 1.3035660e+09 0.094249396 0.024616058 -7.4329178 47.431738 6624.3316 1.2378789e+09 0.092949983 0.025039834 -7.5050624 47.356457 6626.1300 1.1815835e+09 0.092049083 0.026425244 -7.5755845 47.281181 6627.9284 1.1311446e+09 0.090723598 0.025675439 -7.6445831 47.205910 6629.7268 1.0822044e+09 0.089682065 0.025977699 -7.7135816 47.130640 6631.5252 1.0317645e+09 0.088245336 0.025984113 -7.7836065 47.055369 6633.3236 9.8581880e+08 0.087181569 0.026208742 -7.8557412 46.980097 6635.1219 9.4243916e+08 0.086020270 0.026418074 -7.9278758 46.904826 6636.9203 9.0275087e+08 0.084699908 0.026192354 -7.9995753 46.829554 6638.7187 8.6867172e+08 0.083718727 0.025640330 -8.0685743 46.754282 6640.5171 8.3107646e+08 0.084069402 0.025207385 -8.1375732 46.679010 6642.3155 7.9822806e+08 0.083850861 0.025164606 -8.2065722 46.603738 6644.1139 7.5928112e+08 0.082831691 0.025355911 -8.2837683 46.519525 6645.9122 7.1922506e+08 0.081948755 0.025879034 -8.3613930 46.434844 6647.7106 6.8140081e+08 0.081043733 0.026811925 -8.4380167 46.351255 6649.5090 6.4379826e+08 0.080115788 0.026932050 -8.5070242 46.275974 6651.3074 6.1439214e+08 0.079584472 0.026719734 -8.5760316 46.200692 6653.1058 5.8560106e+08 0.079115669 0.027579665 -8.6450391 46.125410 6654.9042 5.6465731e+08 0.077908111 0.027651047 -8.7111274 46.050139 6656.7025 5.4246936e+08 0.076186690 0.028640031 -8.7769896 45.974869 6658.5009 5.2059088e+08 0.075016673 0.030949473 -8.8428518 45.899598 6660.2993 5.0274336e+08 0.074036227 0.031898051 -8.9087143 45.822007 6662.0977 4.8310196e+08 0.072959776 0.032989463 -8.9745769 45.743600 6663.8961 4.7089698e+08 0.071872961 0.032234890 -9.0404394 45.665192 6665.6945 4.5878514e+08 0.072025852 0.027409243 -9.1108403 45.583326 6667.4928 4.4354372e+08 0.071606608 0.027284485 -9.1849365 45.498644 6669.2912 4.2534521e+08 0.070767902 0.028056599 -9.2590327 45.413962 6671.0896 4.0102266e+08 0.071003261 0.026866625 -9.3272312 45.336021 6672.8880 3.7936724e+08 0.070850196 0.027394293 -9.3931022 45.260741 6674.6864 3.6939411e+08 0.069682596 0.029533790 -9.4589731 45.185460 6676.4848 3.5702009e+08 0.067783703 0.032026145 -9.5248395 45.110184 6678.2831 3.4518792e+08 0.067159404 0.030747239 -9.5907017 45.034913 6680.0815 3.3430235e+08 0.067505494 0.029459020 -9.6565639 44.959641 6681.8799 3.2438482e+08 0.068100308 0.030332407 -9.7240284 44.881165 6683.6783 3.1593852e+08 0.068340968 0.032182618 -9.7945961 44.796483 6685.4767 3.0337043e+08 0.068066838 0.033208319 -9.8651639 44.711801 6687.2751 2.8514356e+08 0.066457059 0.034189500 -9.9317612 44.631885 6689.0734 2.7568275e+08 0.064053908 0.033949919 -9.9944877 44.556614 6690.8718 2.6591941e+08 0.063346522 0.033015952 -10.057214 44.481343 6692.6702 2.5708348e+08 0.062609385 0.031987062 -10.122433 44.403081 6694.4686 2.4717792e+08 0.061924914 0.030604278 -10.193001 44.318399 6696.2670 2.3010795e+08 0.061846765 0.029786706 -10.263569 44.233717 6698.0654 2.2091832e+08 0.061242063 0.030307522 -10.328830 44.153582 6699.8637 2.0851054e+08 0.060086908 0.030793450 -10.388427 44.078302 6701.6621 2.0139605e+08 0.058704416 0.032380964 -10.448025 44.003022 6703.4605 1.9518106e+08 0.058985791 0.034827561 -10.508547 43.927744 6705.2589 1.9009543e+08 0.059209566 0.037128854 -10.571273 43.852472 6707.0573 1.8572726e+08 0.058960939 0.040178622 -10.633999 43.777201 6708.8557 1.7778419e+08 0.058619568 0.040975354 -10.697187 43.700920 6710.6540 1.7003377e+08 0.057426763 0.040624514 -10.764227 43.616239 6712.4524 1.5846909e+08 0.055855526 0.042669951 -10.831267 43.531558 6714.2508 1.5069628e+08 0.054169734 0.047322264 -10.898307 43.446876 6716.0492 1.4277114e+08 0.052869462 0.048473806 -10.965346 43.362194 6717.8476 1.3783440e+08 0.051220847 0.049821842 -11.032386 43.277513 6719.6460 1.3261219e+08 0.049997504 0.050756137 -11.096155 43.195585 6721.4443 1.2533637e+08 0.050383028 0.050437780 -11.155745 43.117177 6723.2427 1.2299639e+08 0.049293709 0.049504313 -11.215335 43.038770 6725.0411 1.1821859e+08 0.045530686 0.041550345 -11.275906 42.958791 6726.8395 1.1314326e+08 0.044205551 0.040958939 -11.339417 42.874111 6728.6379 1.0700002e+08 0.044075849 0.040532169 -11.402928 42.789430 6730.4363 99805953. 0.042806457 0.040977058 -11.464810 42.708662 6732.2346 96910856. 0.041570253 0.043783405 -11.524408 42.633380 6734.0330 92131727. 0.040799011 0.049351613 -11.584006 42.558098 6735.8314 89176733. 0.042362139 0.050176027 -11.644497 42.480670 6737.6298 87537887. 0.043608885 0.056141763 -11.708008 42.395988 6739.4282 83945369. 0.043958019 0.063350549 -11.771520 42.311306 6741.2266 80111578. 0.042886518 0.066404831 -11.835031 42.226625 6743.0249 75911899. 0.039947799 0.071215655 -11.898541 42.141944 6744.8233 71830202. 0.037118500 0.078430228 -11.962052 42.057264 6746.6217 68940192. 0.034168863 0.071759296 -12.025563 41.972582 6748.4201 66475766. 0.032897108 0.069226983 -12.089074 41.887900 6750.2185 62961335. 0.030357874 0.072377176 -12.152586 41.803218 6752.0169 61898580. 0.027792218 0.074114976 -12.210974 41.725367 6753.8152 59461138. 0.027014856 0.075615539 -12.267428 41.650097 6755.6136 56634024. 0.025107348 0.074336313 -12.323881 41.574826 6757.4120 57266476. 0.023020824 0.075489741 -12.382231 41.494499 6759.2104 55535326. 0.020503803 0.075870724 -12.442214 41.409816 6761.0088 54797523. 0.023508941 0.077968949 -12.502197 41.325134 6762.8072 51642669. 0.034277190 0.076748844 -12.562180 41.240452